This issue will walk you through what the "Oops! Something went wrong" error message looks like, what it means, and how to resolve it.
This issue will occur if you use Google Maps in your events in WiscWeb (via the Events Calendar Pro plugin).
As of June 2018, Google has changed their Google Maps API such that programs like Events Calendar Pro will require an API key in order to render maps in-page. Therefore, projects that utilize this feature will see an "Oops! Something went wrong" message now in place of the previously embedded Google Map in their event pages.
There are two options for resolving this issue and both are outlined in the Events Calendar Pro Map Rendering Options KB document.